1.   An ordinary mouse typically has a rubber ball embedded in its belly.

2.   But like the brainy rodents in the laboratories at Princeton, the Intellimouse Explorer is no ordinary mouse.

3.   But they do behave differently from ordinary mice.

4.   But the program does wonders for the ordinary mouse.

5.   But these are no ordinary mice.

6.   TV series, have much better long-term memory and learning ability than ordinary mice.

7.   Half the animals were ordinary mice, and soon had emphysema.

8.   Just two weeks ago Japanese researchers reported that cloned mice have markedly shorter lifespans than ordinary mice.

9.   There is, however, a mouse port so you can pack an ordinary mouse if you wish.

10.   They were not quite ordinary mice.